  <template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form ref="loginFormRef" :rules="loginFormRules" :model="loginForm" label-width="0px" class="login_form">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <!-- 前置图标 -->
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-icon_user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <!-- 前置图标 -->
                    <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password" show-password></el-input>
                </el-form-item>
                <!-- 按钮区 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="reseLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
export default {
  data () {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: '',
        password: '',
        name: 'admin',
        password1: '123456'
      },
      // 表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在3到10个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在6到15个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    reseLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      // if (res.meta.status !== 200) return this.$message.error('登录失败')
      if (this.loginForm.username === this.loginForm.name && this.loginForm.password === this.loginForm.password1) {
        this.$message.success('登录成功')
        // 1、将登录成功之后的token，保存在客户端的sessionStorage中
        // 1·2 将项目中除了222登录之外的其他API接口，必须在登录之后才能访问
        // 1·3 token只应在当前网站打开期间生效，所以将token保存在sessionStorage中
        window.sessionStorage.setItem('token', '/front')
        // 2、通过编程式导航跳转到后台主页，路由地址是/home
        this.$router.push('/front')
      } else {
        return this.$message.success('登录失败')
      }
    }
  }
}
</script>
<style scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
}
.login_box .avatar_box{
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%,-50%);
  background-color: #fff;
}
.login_box .avatar_box img{
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #eee;
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
}

</style>
